Business band - Wikipedia, the free encyclopedia There are also other frequencies such as citizen's band and Family Radio Service that may ... commercial and public safety uses of two-way radio by commercial entities and non-Federal ...
List of radio stations in the United Kingdom - Wikipedia, the free ... 3.1 BBC Local Radio; 3.2 BBC Regional Radio; 3.3 Local Commercial Radio ... 8 Hospital radio stations; 9 Satellite radio stations; 10 LPAM, LPFM and other stations; 11 Frequencies ...
FM broadcast band - Wikipedia, the free encyclopedia Frequency modulation radio originated in the United States during the 1930s; the system was developed ...
Radio - Wikipedia, the free encyclopedia Radio frequencies occupy the range from a 3 kHz to 300 GHz, although commercially ... The term became common by the time of the first commercial broadcasts in the United States in ...
AM broadcasting - Wikipedia, the free encyclopedia Commercial and public AM broadcasting is authorized in the medium wave band worldwide, and ..... Since longwave radio frequencies were used for international wireless telegraphy, ...
FM broadcasting in the United States - Wikipedia, the free ... In the United States FM radio stations broadcast at frequencies of 87.8–107.9 MHz. FM radio was ...
FM broadcasting - Wikipedia, the free encyclopedia A commercial 35 kW FM radio transmitter built in the late 1980s. .... In addition, for a given RF level at the receiver, the signal-to-noise ratio for the stereo signal will be worse than for the ...
Commercial broadcasting - Wikipedia, the free encyclopedia "Commercial radio" redirects here. For the radio broadcasting company in Hong Kong, see Commercial ...
Commercial Radio Operator License Program: Who Needs a ... 2013年5月17日 - You need a commercial radio operator license to operate the following: ... Ship radar stations, if (a) the radar frequency is determined by a nontunable, pulse type ...
Commercial Radio | The Radio Academy There are over 300 in the UK, mostly using FM frequencies and DAB. ... National Commercial Radio.
